> -----Original Message----- > From: Jeff Capone > > Some firewall do not let UDP in or out. The advantage with TCP is even if > you have a very restricted firewall on one side, the outbound connection > will look like a normal tcp open to it and it will allow the connection to > form.
Have you seen this much in practice? While I'm sure this happens to some degree -- especially in locked-down corporate environments -- those same environments also probably block outbound TCP. Have you seen many environments that allow outbound, unproxied TCP connections while blocking outbound UDP? In my experience, straight up UDP blockage is exceedingly rare -- less than 1% of connections surveyed, though my demographic tends toward home users. -david _______________________________________________ p2p-hackers mailing list [email protected] http://lists.zooko.com/mailman/listinfo/p2p-hackers
